©
本文檔使用 php中文網手册 發布
(PHP 5, PECL OCI8 >= 1.1.0)
oci_field_size — 返回字段大小
$stmt
, mixed $field
) oci_field_size()
以字节为单位返回字段的大小。field
参数的值可以是字段的索引(从 1 开始)或者字段名。
Example #1 oci_field_size() 例子
<?php
$conn = oci_connect ( "scott" , "tiger" );
$stmt = oci_parse ( $conn , "SELECT * FROM emp" );
oci_execute ( $stmt );
echo "<table border=\"1\">" ;
echo "<tr>" ;
echo "<th>Name</th>" ;
echo "<th>Type</th>" ;
echo "<th>Length</th>" ;
echo "</tr>" ;
$ncols = oci_num_fields ( $stmt );
for ( $i = 1 ; $i <= $ncols ; $i ++) {
$column_name = oci_field_name ( $stmt , $i );
$column_type = oci_field_type ( $stmt , $i );
$column_size = oci_field_size ( $stmt , $i );
echo "<tr>" ;
echo "<td> $column_name </td>" ;
echo "<td> $column_type </td>" ;
echo "<td> $column_size </td>" ;
echo "</tr>" ;
}
echo "</table>" ;
oci_free_statement ( $stmt );
oci_close ( $conn );
?>
Note:
在 PHP 5.0.0 之前的版本必须使用 ocicolumnsize() 替代本函数。该函数名仍然可用,为向下兼容作为 oci_field_size() 的别名。不过其已被废弃,不推荐使用。
参见 oci_num_fields() 和 oci_field_name() 。
[#1] rudi at darx dot com [2000-07-16 10:19:48]
Just a note regarding the size of Oracle NUMBERS will always return 22 as their "size".
This seems to be an Oracle feature. The rest of the documentation is in bug5156.